Gasolene-motor.



J. E. STEVENS.

GASULBNE MoToF..

APELIGA'IION FILED JUNE 20, 1912.

j J o Patented l15.11.20, 1914.

J.,B. STEVENS.

GASOLENB MOTOR. l

APyLIUATIoN FILED JUNE 2o, 1912,

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entretiene-Motion.

Specification of Lettere Patent.

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,eppncenn mea June eo. 1912. Serin No. mensa.

To all whom t may concern:

Be it known that l, Jenn E. S'rnvnns, 'a subject of the' King of England, residing et Kewanee, in the county ot Henryend State .of illinois, have invented certain new and useful improvements-in @fascisme-Motors, o-

which the following is e specication, reference being had .therein to the accompanying.

drawings. This invention relates to internal combus-a tion enginesend has special reterence to a novel forni oi` valve for regulating the ad- I.novel constructions, conibinationsnd ar-.r

rntoe construccion of this engine there mission and 4exvheust of such an engine. p

One object. ofthe invention is to improve the general construction ci sleeve` valves for use in connection .with gasolene engines.

,i second object ,of the invention is to provide er novel Storni of operating means for such a valve. l

lilith the above and other objects in view, the invention consists in general ot certain gases to and from rangements of .part-s, as will be hereinafter full;7 described, illustrated in the! accono` panyinglrawings, and speciicallyclaimed.

ln the accompanying. drawings like cher' acters of reference indicate like parts int-he several views, and Figure l is a central ven tical section through an engine constructed in accordance with this invention, cert-ein of the parts being shown in elevation. Fig. 2 is a detail view of the valve showin the position of the ports. Fig. 3 is a view s owing a second position ot certain cams shown A in Figi' 2. Fig. is a diagrammatic view showing the movement o the sleeve valve.

Fig, 5 vis a diagrammatic view of the cam ,1 ont when the cams are in the position cated in Fig. 2.

is providedtlie usual crank case 10 whereon is mounted the cylinder il having n piston l2 reciprocable therein. 'The crank casing is provided' with suitable-bearings to support the shaft i3 carrying@ crank 14 which is connected to che piston 'l2 by means of a rod l5. This piston 'l2 is of less diameter than the cylinder 1l and between the cylin.

der and piston 19 there is'litted a sleeve 16. On the upper end of the cylinder there is provided a head 17 having a downwardly extending central portion 18 lying within the sleeve 16.' The sleeve above referred to forms the valve of the engine and has a double motion, that is to say, the sleeve has t positioned that 'both e'ireciprooatory and an oscillatory movement, the two being combined during a portion .of the movement of the cngme while at other times the reciprocatory niove-A the exhaust and intake ports consists of a collar 23 whichlis secured to the lower end of the sleeve 16, the latter projecting into the crank casing. Through vthe cranlti'casing entends fe shaft 2e whereon is slidably mounted ,an eccentric 25 having an eccentriwY i 'strep 2% surrounding the central portion of said eccentric. Extending upward from the eccentric 1s anarni 2? which is secured be- ...tween lugs 28 formed on the collar 23. `Fixed npon the crank case i0 is a" pair offace cams '2e' whose inner feces are parallel, Entending from eacliside of the eccentric 25 iso pin 30 having. s bell head 31 which rests against the face of the' adjacent cam. The

shaft 1% is driven from the shaft' 13 by anyA to be shown. The cams and eccentric are so posltioned'with relation to the movement of the sleeve 16 that during the intake or suction stroke of the engine the eccentric 'suitable gearing not deemed necessary here will he moving from the bottom to inidposition while the balls 31 will be rolling against dwells onxtlie` earns.

When the eccentric is rising forthe compression stroke the cams are moving the eccentric to the right. stroke it is not desirable to move thesleeve ltrin 'ahrotary direction andiother dwells are provided on the cams over which the balls 3l travel while the eccentric is accomplishing the iii-st half of its downward movement.

During the exhaust stroke the balls 31 are traversing the parts of the' cam that-cause During the firing loe the eccentric to move to the left while at. the I same tii'ne the latter is accomplishing the last half of downward movement. This is clearly seen by reference to Fig. 4 which shows the movement of any point on the sleeve i6.

There has thus been provided a simple and eliicient device of the kind described, and for the purpose speciied.

It is obvious that many minor changes may be made in the form and constructionv of this inventlon without departing trom the.

material principles of the invention and it is therefore not wished to confine the invention to the exact forin herein shown and described but it is wished to include all such as properly come within the scope of theciprocates and oscillates within the cylinder 4 1.1, the inlet ports Will close, While the exhaust ports 21 will register with the exhaust passage 20 for allowing the gases to escape.

Having' thus described the invention, What is claimed as new, is y 1. In a device of the kind described, a crank casing, an engine cylinder, a sleeve fitted within said engine cylinder and adapted to receiv 'the piston of the engine, said sleeve being s idable and rotatable within the cylinder, the sleeve and cylinder being provided with ports adapted to register one with the other whereby the sleeve constitutes ayalve, and means to osoillate and reciprocate said sleeve within said cylinder cornprising a shaft, an eccentric slidable on said shaft, an eccentric strap surrounding said eccentric, an arm siviveled to said eccentric 4 strap, a collar on said sleeve, lugs on said collar to which said arm is secured, a pair of' face cams tixed on said crank case and provided with dwells arranged opposite each other, and pins projecting from said eccenineen?? tric and bearing against the faces of the respective cams.

2. 1n a device of the kind described, an engine cylinder, a sleeve fitted Within said engine cylinder and adapted to receive the piston of an engine, said sleeve being slidable and rotatable Within the cylinder, the sleeve and cylinder being provided with ports being adapted to register one with the other whereby the sleeve constitutes a valve, and means for oscillating and reciprocating said sleeve Within said cylinder comprising ashaft, an eccentric slidable on said shaft, an eccentric strap surrounding said eccentric, an arm swiveled to said eccentric strap, a collar carried by said sleeve, said arm connected to said collar, and means coperating with said shaft for operating said eccentric.

3. In a device of the kind described the combination with a crank casing, an engine cylinder, a sleeve fitted Within said engine cylinder land .adapted to receive a piston of an engine, said sleeve being slidable and rotatable Within said cylinder, said cylinder and sleeve being provided with ports adapted to register one with the other whereby the sleeve constitutes a valve, and means for oscillating and reciprocating said sleeve Within said cylinder comprising a depending arm attached to said sleeve, cams carried 1 by said crank casing below and to one side of said sleeve, and means attached to said arm coperating with said cams for imparty ing oscillating movement to said sleeve, and

means ccperating with said last mentioned '80 means for imparting reciprocating movenient to said sleeve simultaneous with the oscillating movement.

In testimony whereof l hereunto ax my signature in presence of two Witnesses.

JOHN E. STEVENS. Witnesses y F. A. Dicnnvsoiv, R. B. GLiDnEN. 

